It's a fair guess that the abuse you suffered caused you to miscarry. Far too much of a coincidence otherwise for me.

The best thing you can do for your daughters and yourself is to stay as far away from this man as posible. You know what. Great that he is saying he isn't the father. DO you really want a man like that fathering your children ? By staying in an environment like that you are only showing your daughters that it's ok to be treated like a piece of dirt and will come to allow that of themselves as they grow up.

Joining some support groups is a great way to help rebuild your esteem, having a life with gf's and not relying on this man is a good thing for you. Make your girls your world but don't forget you need a life too.

Goodluck.